Oil heating unit



Jan. 8, 1935. 5 MOORE 1,987,487

o IL HEATING UNIT Filed Sept. 15, 1933 4 protector ring '7 is carried near the lower edge of gases passing upwardly from the fire about the 45 I Patented Jan. 1935 I o v v UNITED STATES PATENT OFFICE Ricki? sfi ofiing if Tex Application September 15, 1933, Serial No. 689,648

3 Claims. (01. 126-93) 7 This invention relates to oil heating units, and sage by hitting the deflector 10 and being spread has for its object the production of a simple and out toward the sides and over the edges of the efiicient oil heater, the parts of which may be deflector 10,-as shown by the arrows .in Figure 3. readily and easily separated for the purpose of The plate 4 is provided with a depending flange 4 5 repair or replacement. which is bolted between the skirt 2 and the upper 5 Another object of this invention is the producportion of the base 1. tion of a simple and efficient oil heater which is so Mounted within the base 1 and located above constructed as to provide an efilcient oil burning the bottom plate 4 is the fire pct 13, which flre pot unit and means for passing a draft therethrough is of a cup-shaped formation having a laterally 10 for the purpose of facilitating combustion. extending neck 14 projecting from one side and 10 A further object of this invention is the producextending through the side wall of the base 1, as tion of a simple and efiicient oil heater the parts shown in Figure 3. This neck 14 is normally of which are simple and cheapinconstruction and closed by a cap or lid 14. The lid 14' may be wherein the parts may be readily assembled or removed forthe purpose of obtaining access to the 15 detached for the purpose of permitting free access fire pot for lighting or cleaning the burner. The 15 to the interior of the heater. bottom of the fire'pot l3 ispreferably dished to- With these and other objects in view this invenward the center and is provided with an upwardly tion consists in certain novel constructions, comextending neck 15. arranged centrally and conbinations and arrangements of parts as will be stituting also a draft port, the hollow neck 15 hereinafter more fully described and claimed. being located directly above the aperture 16 20 In the drawing: formed in the bottom plate 4. A removable hol- Figure 1 is a side elevation of the heater; low tube 1'1 is fitted over the hollow neck 15 and- Figure 2 is a side elevation taken at right angles extends upwardly to a point in close proximity to to Figure 1, the upper and lower parts being shown the discharge opening 18 formed in -the top of the partly separated and certain portions being shown fire pot 13. Mounted within the aperture 18 or 25 g in section; I discharge opening, is a removable collar 19 which Figure 3 is a vertical section through the heater constitutes an open throat for the upper end of certain parts being broken away; the fire pct 13. This removable collar 19 is pref- Fig ure 4 is a section taken on the line 4-4 of erably of cast material, as is also the removable Figure 3; and tube 17, and-this collar 19 is provided with an over- 30 Figure 5 is a section taken on line 55 of hanging flange 20 which overhangs the apertured Figure 3 certain parts being broken away. supporting plate 21 which is carried near the top By referring to the drawing, it will be seen that of the base 1, as shown.- The fire pct 13 is pro-' 1 designates the base which is provided with an vided with a cover plate 22 which cover plate 22 is outwardly flared skirt 2, the skirt 2 flaring outprovided with a centralaperture registering with 35 wardly at its bottom to provide a wide and sturdy the aperture 18 of the plate 21 and the plates 21 support for the heater to prevent the same from and 22 may be connected together by meansof accidentally tipping over. The skirt 2 is provided suitable rivets 23. The fire pot is provided with with a series of perforations 3 near the bottom a series of air ventapertures 24 near the top thereof for the purpose of'admitting air under the thereof, and just above the liquid level indicated 40 bottom plate 4 carried by the base 1. Resting by the line :c-zc on Figure 3. By forming the upon the top edge of the base 1 is a removable top tube 1'? and collar 19 of cast metal, they will serve section 5 which fits over the upstanding flange 6 to strengthen the neck 15 and plates 21 and 22, of the base 1, as shown clearly in Figure 3. A and prevent them from being damaged by hot the top section 5 and overhangs the flange 6, as tube and through the collar. Having these eleshown. The top section 5 is provided with a cover ments formed separate from the neck and plates 8- having an outlet tube 9 extending through the also permits easy removal and replacement of the upper central portion thereof. Aninverted conisame when it is necessary to clean the stove.

cal deflector or heat spreader 10 is suspended An oil reservoir or tank 25 is supported in any 50 below the tube 9 in spaced relation by means of suitable or desired manner to one side of the base the supporting brackets 11, the deflector 10 having 1 and is of the conventional type common to the its outer edges 12 extending in relative close relatrade whereby the liquid level is normally maintion to the side walls of the top section 5, as shown, tained at a specific point. Leading from the base to causethe heat to pass through acircuitous pas- 26 of the tank 25 is an oil supply pipe 2'? which 66 extends through the base 1 and into the fire pct 13 near the bottom thereof for the purpose of supplying oil to the fire pot. A suitable brace 28 is secured to the skirt 2 and also to the pipe 27 near its outer end to constitute a brace therefor. A control valve 29 is carried by the outer end of the pipe 27 to manually control the fiow of oil' when desired. A shield plate 30 may be interposed between the tank 25 and the body of the stove to shield the tank 25 from the heat of the stove;

The operation of the device is as follows:-Oil

-'is fed through the pipe 2'? into the fire pot 13 where it will seek its level, as indicated by the line :r:c in Figure 3. The lid 14 may be removed from the neck 14 to permit the ignition of the oil within the fire pot when desired. The burning of the oil in the fire pot 13 is facilitated by the airpassing up through the apertures 3 and through the apertures 24 and this will greatly facilitate the combustion of the. gas by vaporizing the oil. The draft will also continue up through the neck 15, through the hollow tube 17, out through the throat plate 19, and will be deflected by the deflector 10 and finally passed out through the outlet neck 9.

The fire pct 13 is preferably constructed of cast steel whereas the bottom or base 1 is preferably constructed of pressed steel. The collar 19, as

well as the hollow tube 1'? will be preferably formed'of cast metal and they are removable for the purpose of facilitating repair or replacement. It should be understood that the present heating unit may also be used with other fuel tanks located remotely from the heater so long as suitable means are provided to prevent the flooding of the fire pot. It should be understood further that a very simple and efllcient heater has been provided, the parts of which may be readily detached or separated for the purpose of repair or replacement and that the parts are so connected as to prevent them from becoming accidentally disconnected or displaced.

Certain detail changes in the mechanical construction may be employed without departing from the spirit of the invention, so long as these changes fall within the scope of the appended claims.

Having described the invention, what is claimed as new is:

1. A heater comprising a cylindrical base, a bottom plate for said base having an enlarged opening formed therein, means to support the base in an elevated position, a fire pot disposed above said bottom plate within the base and having an upwardly extending hollow neck aligned with the opening of the bottom plate, walls of the fire pot being spaced from walls of the base and perforated to form draft vents, a top plate for said fire pot resting thereon and formed with an opening aligned with said neck, a supporting plate in said base resting thereon about the opening thereof and having an opening registering with the opening of the top plate, a collar extending through the openings of the supporting plate and top plate, said supporting plate diverging upwardly from the top plate and having an upstanding marginal flange contacting with the walls of the base and projecting upwardly therefrom, a top section fitting about the projecting upper portion of the flange of said supporting plate and resting upon the upper edge of said base, and a fuel pipe extending through spaced walls of the base and fire pot into the fire pot with its inner end spaced from the neck.

p 2. A heater comprising a cylindrical base, a bottom plate for said base formed with a central opening, means to support the base in an elevated position, a fire pot in said base, a clean out neck extending transversely from said fire pot through a side portion of the base, a neck rising from the bottom of said fire pot in alignment with the opening in the bottom plate, a frusto conical top for said fire pot having its marginal portions resting upon upper edges of walls of the fire pot, the walls of the fire pot being formed with draft perforations above the liquid level of the fire pot, an inverted frusto conical supporting plate in said base having its central portion contacting with the central portion of. said top, the contacting portions of the top and supporting plate being formedwith registering openings aligned with said neck, a collar fitted through the registering openings of the top and supporting plate, fasteners for holding the top and plate-together extending through the top and supporting plate and spaced radially from their contacting portions, said supporting plate having an upstanding marginal flange projecting upwardly from walls of the base, an upper stove section resting upon walls of the base about the upwardly projecting portions of the flange of the supporting plate, and a fuel pipe extending into said fire pot.

3. A heater .comprising a cylindrical base, a skirt for said base formed separate therefrom, a bottom plate for said base resting upon said skirt and having an enlarged opening formed therein, said bottom plate having a marginal flange surrounding the upper end of the skirt and said base having its lower portion fitting about the flange and secured by fasteners passed through the flange and upper portion of the skirt, a fire pot disposed above said bottom plate within the base and having an upwardly extending hollow neck aligned with the opening of the bottom plate, walls of the fire pot being spaced from walls of the base and perforated to form draft vents, and a fuel pipe extending through spacedwalls of the base and fire pot into the fire pot with its inner end spaced from the neck.

. RICHARD S. MOORE. 

